1.	Simplify 1 Simplify the following expression: $$ {\left(5 - -6\right)}^{2} + \left(-6 - 4\right)\left(-6 - -3\right) $$ Correct Answer $$ 151$$ or 151.000

2.	Simplify 2 Simplify the following expression: $$ 2\frac{2}{-6} - \left(-1 - -6\right)\left(3 + 6\right) $$ Correct Answer $$ \frac{-137}{3}$$ or -45.6667

3.	Fractions 1 Simplify the following expression: $$ \frac{-6}{6} - \frac{-4}{3} $$ Correct Answer $$ \frac{1}{3}$$ or 0.33333333333333326

4.	Fractions 2 Simplify the following expression: $$ \frac{3}{2}\frac{2}{3} $$ Correct Answer $$ 1$$ or 1.0

5.	Significant figures 1. Write the following to 4 significant figures: 0.099936779 Correct Answer 0.09994 or $$9.994\times10^{-2}$$ 2. Write the following to 2 significant figures: 0.024552486 Correct Answer 0.025 or $$2.5\times10^{-2}$$

6.	Standard Form 1. Write the following in standard form to 3 significant digits: 16664.9 Correct Answer $$1.67\times10^{4}$$ 2. Write the following in standard form to 2 significant digits: 0.00000139751 Correct Answer $$1.4\times10^{-6}$$

7.	Significant figures 1. Write the following in preferred standard form to 5 significant digits: 0.340477 Correct Answer $$340.48\times10^{-3}$$ 2. Write the following in preferred standard form to 2 significant digits: 0.0000629 Correct Answer $$63\times10^{-6}$$

8.	Simplify 2 Simplify the following expression: $$ \frac{-3 + -2}{-3(-4)} - {\left(-5 - 4\right)}^{2} $$ Correct Answer $$ \frac{-977}{12}$$ or -81.4167

9.	Simplify 1 Simplify the following expression: $$ \left(-2 - -1 + -2 - -5\right)2\times2\times4 $$ Correct Answer $$ 32$$ or 32.0000

10.	Simplify 2 Simplify the following expression: $$ \frac{5 - 4}{-3 - -2} - {\left(-4 - 5\right)}^{2} $$ Correct Answer $$ -82$$ or -82.0000